public EvalResult Eval(String elfCode)
{
var wrapped = WrapInteractiveElf(elfCode);
VM.Load(wrapped);
var changeset = new ChangeSet(() => Ctx, v => { Ctx = v; }).StartRecording();
Ctx = new PropertyBag(changeset.BaseLine);
try
{
var className = wrapped.Substring(0, wrapped.NthIndexOf(" ", 2)).Substring(4);
var retval = VM.CreateEntryPoint(className, "Main").RunTillEnd();
return new EvalResult(retval, changeset.Capture());
}
finally
{
Ctx = new PropertyBag(changeset.BaseLine);
}
}
public EvalResult(object retval, ChangeSet sideEffects)
{
Retval = retval;
SideEffects = sideEffects;
}